looking for pointers to track down why small holes around 12mm or less come out as polygons rather than circles on my cnc table with PM45 machine torch setup.
Also I'm using a PM45 with my own THC and setting power, voltage, feed etc. as per the manual and generally cuts are good - but if I wanted to lower the feedrate (thinking that might help with the circle problems) are there formulae for working out how to change the power/voltage/etc. accordingly.
Thanks